Island



(No Model.) 7 D. JACKSON.

SPINDLE FOR $PINNING MACHINES.

N0.-399 046. Patented Mar. 5, 1889.

WITNESSES.

Idcaciz 2476606 Attorney.

Lflhugnpher. Washingiml, D, C.

UNITED STATES PATENT @rrrce.

DAVID JACKSON, OF PAlVTUCKE'l, RHODE ISLAND.

SPINDLE FOR SP|NNlNG- IVIACHINES.

SPECIFICATION forming part of Letters Patent No. 399,046, dated March 5, 1889.

Application filed April 2, 1888. Eeriai No. 269,373 No modeld 7 i l r t In that part of the spindle which runs in the bolster I form a suitable number of pe' ripheral annular grooves, r-three in the present instance. These grooves are packed with yarn or other fibrous material, I), which will absorb and retain the lubricant. I have shown but two of the grooves packed. The bottom ticular reference to the needs of the rcvolvin 1 spindle used in spinning machinery such as roving-machines, in which the spindle and its bolster have a lengthwise movement or traverse relatively to each other. To this end 1 form in the spindle within the limits of the portion which traverses the bolster two or more annular grooves having no connection with one another, each of which grooves is filled with packing material that will absorb i as possible; but in so doing the bolster neca suitable lubricant. The luln-icant is held and retained in the packing in the grooves one of the three is left unpacked in order to disclose more clearly the form of the groove.

The lubricant is absorbed and retained by this packing; is given out, as hcreinbefore ex plained, only when the spindle is in movement, and even then only in quantity sufficient for lubricating purposes.

and is only given out therefrom under the capillary attraction, as it in some sort may be considered, resulting from the rapid revolution of the spindle in its closely-fitting bolster, the oil being drawn out from the packing in such quantities only as to afford the needed lubrication and being again taken up and reabsorbed in great measure by the packing when the spindle ceases to move. The packed grooves also being placed upon the spindle within the limits of its traverse in the bolster, prevents the undue spreading of the lubricant upon the spindle and the damage to the bobbin which would result therefrom.

The nature of my improvement and the manner in which the same is or may be carried into effectwill be readily understood by reference to the accompanying drawings, in which- Figure 1 is a sectional elevation of a roving-machine spindle and some of its appurtenances, the spindle being in elevation and the bolster and bobbin and its yarn-load being in vertical section. Fig. 2 is a view of the spindle detached.

It is not nccessaryto identify the parts f urther than to say that A is the spindle, and B is the bolster therefor, and C is the bobbin with its yarn-load D.

All of the parts are of the construction usually found in roving-inachines, except so far as concerns the construction and arrange ment of the lubricating device.

In practice it heretofore has been necessary to chamber the bolster within which the spur dle rotates in order to reduce friction as far essarily is weakened to such an extent that it frequently breaks during the operation of re moving the bobbin. The same defect is noticeable if the bolster instead of the spindle be chambered, recessed,or grooved to receive a lubricant. Such a construction,however,is not necessary when my invention is used. The bolster can, as shown, he made with a straight bore having a continuous and unbroken interiorsurface from end to end, which adds greatly to its strength and allows the spindle to be run ata much greater rate of speed, thus enhancing the producing capacity of the machine. Again, it is necessary with the spindle and bolster in common use to-day to oil the spindle twice and sometimes thrice a day. It frequently happens also that in removing the spindles from their bolsters they must be driven out by a hammer, owing to neglect or failure to oil the spindles, which causes what is known as the cutting or roughing up of the spindle, and the consequent sticking of the latter in its bolster. By my improvement this frequent oiling is not necessary. I have successfully run my improved spindles for a months time with one oiling.

It is often the case in cotton-mills that the roving while still on the bobbins is packed away for a time until it is required for use, and in such case it not infrequently happens that the roving becomes stained and unfitted for use by the oil which soaks into it from the bobbins. This result is due to oil from the spindles getting on the bobbins in consequence of the large quantity of oil used. in the ordinary methods of lubrication. By my in vention, however, this trouble about the bob bins is obviated, Only so much oil is applied in the first instance as can be taken up by and contained in the fibrous packing, and then it is only furnished therefrom to the spindle as it is actually needed, and there is none that comes in contact with the bobbin.

Having described my improvement, I state in conclusion that I am aware that grooves of varied form, shape, and direction for the guidance and retention of oil or other lubricant have heretofore been formed in roller-journals or in the bearings thereof, and this I do j not claim; but

i and holding the lubricant, said grooves hav- 1 ing no communication with each other and i being formed within the limits of that porj t-ion of the spindle which traverses the bol- 1 ster, as and for the purposes hereinbet'ore seti forth.

In testimony whereof I have hereunto set my hand this 28th day of March, A. D. 1888.

DAVID JACKSON.

lVitnesses:

A. T. ATHERTON, l W. W. BLoDe T 

